From bugzilla@redhat.com Mon Jan 14 15:59:49 2002 From: bugzilla@redhat.com To: redhat-watch-list@redhat.com Cc: bugtraq@securityfocus.com, linux-security@redhat.com Date: Mon, 14 Jan 2002 11:18 -0500 Subject: [RHSA-2002:004-06] New groff packages available to fix security problems [The following text is in the "iso-8859-1" character set] [Your display is set for the "US-ASCII" character set] [Some characters may be displayed incorrectly] --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: New groff packages available to fix security problems Advisory ID: RHSA-2002:004-06 Issue date: 2002-01-07 Updated on: 2002-01-14 Product: Red Hat Linux Keywords: groff security Cross references: Obsoletes: --------------------------------------------------------------------- 1. Topic: New groff packages have been made available that fix an overflow in groff. If the printing system running this is a security issue, it is recommended to update to the new, fixed packages. 2. Relevant releases/architectures: Red Hat Linux 7.0 - alpha, i386 Red Hat Linux 7.1 - alpha, i386, ia64 Red Hat Linux 7.2 - i386, ia64 3. Problem description: Groff is a document formatting system. The groff preprocessor contains an exploitable buffer overflow. If groff can be invoked within the LPRng printing system, an attacker can gain rights as the "lp" user. Remote exploitation may be possible if lpd is running and is accessible remotely, and the attacker knows the name of the printer and spoolfile. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2002-0003 to this issue. Thanks to zen-parse for bringing this bug to our attention. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info): 6. RPMs required: Red Hat Linux 7.0: SRPMS: ftp://updates.redhat.com/7.0/en/os/SRPMS/groff-1.16-7.1.src.rpm alpha: ftp://updates.redhat.com/7.0/en/os/alpha/groff-1.16-7.1.alpha.rpm i386: ftp://updates.redhat.com/7.0/en/os/i386/groff-1.16-7.1.i386.rpm Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/groff-1.17.2-7.0.2.src.rpm alpha: ftp://updates.redhat.com/7.1/en/os/alpha/groff-1.17.2-7.0.2.alpha.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/groff-1.17.2-7.0.2.i386.rpm ia64: ftp://updates.redhat.com/7.1/en/os/ia64/groff-1.17.2-7.0.2.ia64.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/groff-1.17.2-7.0.2.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/groff-1.17.2-7.0.2.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/groff-1.17.2-7.0.2.ia64.rpm 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- 4fe878d0720088830c29954d25c9e032 7.0/en/os/SRPMS/groff-1.16-7.1.src.rpm b37f80ae0a4e6ad49b3d697376cfdde2 7.0/en/os/alpha/groff-1.16-7.1.alpha.rpm 6e7cfc9cf998ac9a6a6401d627acdea4 7.0/en/os/i386/groff-1.16-7.1.i386.rpm 1d4e9b5068fcf178ddacf032c0db523d 7.1/en/os/SRPMS/groff-1.17.2-7.0.2.src.rpm 93cbf905335c1474ed9e632c0ec83738 7.1/en/os/alpha/groff-1.17.2-7.0.2.alpha.rpm f3181dd6c32ffc9478721244b77c89af 7.1/en/os/i386/groff-1.17.2-7.0.2.i386.rpm 4f08644532e54b8c3553b04148424e56 7.1/en/os/ia64/groff-1.17.2-7.0.2.ia64.rpm 1d4e9b5068fcf178ddacf032c0db523d 7.2/en/os/SRPMS/groff-1.17.2-7.0.2.src.rpm f3181dd6c32ffc9478721244b77c89af 7.2/en/os/i386/groff-1.17.2-7.0.2.i386.rpm 4f08644532e54b8c3553b04148424e56 7.2/en/os/ia64/groff-1.17.2-7.0.2.ia64.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/about/contact/pgpkey.html You can verify each package with the following command: rpm --checksig If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0003 Copyright(c) 2000, 2001, 2002 Red Hat, Inc.